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    8 vulnerabilities found for Microsoft Exchange Server 2016 Cumulative Update 12 by Microsoft

    CVE-2021-27065 (GCVE-0-2021-27065)

    Vulnerability from nvd – Published: 2021-03-02 23:55 – Updated: 2025-10-21 23:25
    VLAI CISA KEVIntel
    Title
    Microsoft Exchange Server Remote Code Execution Vulnerability
    Summary
    Microsoft Exchange Server Remote Code Execution Vulnerability
    SSVC
    Exploitation: active Automatable: no Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • Remote Code Execution
    • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
    Assigner
    Impacted products
    Vendor Product Version
    Microsoft Microsoft Exchange Server 2019 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:*:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2013 Cumulative Update 22 Affected: 15.00.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_22:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 2 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_2:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 13 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_13:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2013 Cumulative Update 23 Affected: 15.00.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_23:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 3 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_3:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 14 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_14:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 4 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_4:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 15 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_15:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 5 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_5:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 6 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_6:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 16 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_16:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 17 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_17:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 7 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_7:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 18 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_18:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 19 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_19:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 8 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_8:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2013 Service Pack 1 Affected: 15.00.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_1:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2013 Cumulative Update 21 Affected: 15.00.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_21:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 12 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_12:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 8 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_8:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 1 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_1:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 9 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_9:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 10 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_10:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 11 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_11:*:*:*:*:*:*
    Create a notification for this product.
    Date Public
    2021-03-02 08:00
    Show details on NVD website

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              "product": "Microsoft Exchange Server 2016 Cumulative Update 13",
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              "product": "Microsoft Exchange Server 2013 Cumulative Update 23",
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              "product": "Microsoft Exchange Server 2019 Cumulative Update 3",
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              "product": "Microsoft Exchange Server 2016 Cumulative Update 14",
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              "product": "Microsoft Exchange Server 2019 Cumulative Update 4",
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              "product": "Microsoft Exchange Server 2016 Cumulative Update 15",
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              "product": "Microsoft Exchange Server 2019 Cumulative Update 5",
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    CVE-2021-26858 (GCVE-0-2021-26858)

    Vulnerability from nvd – Published: 2021-03-02 23:55 – Updated: 2025-10-21 23:25
    VLAI CISA KEVIntel
    Title
    Microsoft Exchange Server Remote Code Execution Vulnerability
    Summary
    Microsoft Exchange Server Remote Code Execution Vulnerability
    SSVC
    Exploitation: active Automatable: no Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    Assigner
    References
    Impacted products
    Vendor Product Version
    Microsoft Microsoft Exchange Server 2019 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:*:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2013 Cumulative Update 22 Affected: 15.00.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_22:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 2 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_2:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 13 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_13:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2013 Cumulative Update 23 Affected: 15.00.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_23:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 3 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_3:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 14 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_14:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 4 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_4:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 15 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_15:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 5 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_5:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 6 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_6:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 16 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_16:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 17 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_17:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 7 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_7:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 18 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_18:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 19 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_19:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 8 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_8:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2013 Cumulative Update 21 Affected: 15.00.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_21:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 12 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_12:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 8 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_8:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 1 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_1:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 9 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_9:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 10 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_10:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 11 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_11:*:*:*:*:*:*
    Create a notification for this product.
    Date Public
    2021-03-02 08:00
    Show details on NVD website

    {
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            "metrics": [
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            "problemTypes": [
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                "time": "2021-11-03T00:00:00.000Z",
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        "cna": {
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              "platforms": [
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              "product": "Microsoft Exchange Server 2013 Cumulative Update 23",
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              "platforms": [
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              "product": "Microsoft Exchange Server 2016 Cumulative Update 15",
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              "product": "Microsoft Exchange Server 2019 Cumulative Update 5",
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              "product": "Microsoft Exchange Server 2019 Cumulative Update 6",
              "vendor": "Microsoft",
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              "product": "Microsoft Exchange Server 2016 Cumulative Update 16",
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              "versions": [
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              "product": "Microsoft Exchange Server 2016 Cumulative Update 17",
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              "product": "Microsoft Exchange Server 2019 Cumulative Update 7",
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              "platforms": [
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              "product": "Microsoft Exchange Server 2016 Cumulative Update 18",
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              "versions": [
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            {
              "lang": "en-US",
              "value": "Microsoft Exchange Server Remote Code Execution Vulnerability"
            }
          ],
          "metrics": [
            {
              "cvssV3_1": {
                "baseScore": 7.8,
                "baseSeverity": "HIGH",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C",
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          ],
          "providerMetadata": {
            "dateUpdated": "2023-12-29T20:08:57.719Z",
            "orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
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            }
          ],
          "title": "Microsoft Exchange Server Remote Code Execution Vulnerability"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
        "assignerShortName": "microsoft",
        "cveId": "CVE-2021-26858",
        "datePublished": "2021-03-02T23:55:27.000Z",
        "dateReserved": "2021-02-08T00:00:00.000Z",
        "dateUpdated": "2025-10-21T23:25:52.837Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
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    }

    CVE-2021-26857 (GCVE-0-2021-26857)

    Vulnerability from nvd – Published: 2021-03-02 23:55 – Updated: 2025-10-21 23:25
    VLAI CISA KEVIntel
    Title
    Microsoft Exchange Server Remote Code Execution Vulnerability
    Summary
    Microsoft Exchange Server Remote Code Execution Vulnerability
    SSVC
    Exploitation: active Automatable: no Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • Remote Code Execution
    • CWE-502 - Deserialization of Untrusted Data
    Assigner
    References
    Impacted products
    Vendor Product Version
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 19 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_19:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 8 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_8:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:*:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2013 Cumulative Update 22 Affected: 15.00.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_22:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 2 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_2:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 13 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_13:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2013 Cumulative Update 23 Affected: 15.00.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_23:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 3 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_3:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 14 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_14:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 4 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_4:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 15 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_15:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 5 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_5:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 6 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_6:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 16 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_16:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 17 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_17:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 7 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_7:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 18 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_18:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2010 Service Pack 3 Affected: 14.0.0.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2010:sp3:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2013 Service Pack 1 Affected: 15.00.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_1:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2013 Cumulative Update 21 Affected: 15.00.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_21:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 12 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_12:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 8 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_8:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 1 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_1:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 9 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_9:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 10 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_10:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 11 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_11:*:*:*:*:*:*
    Create a notification for this product.
    Date Public
    2021-03-02 08:00
    Show details on NVD website

    {
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            "metrics": [
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            "timeline": [
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                "time": "2021-11-03T00:00:00.000Z",
                "value": "CVE-2021-26857 added to CISA KEV"
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            "title": "CISA ADP Vulnrichment"
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              "product": "Microsoft Exchange Server 2019 Cumulative Update 5",
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              "product": "Microsoft Exchange Server 2019 Cumulative Update 6",
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              "product": "Microsoft Exchange Server 2016 Cumulative Update 16",
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              "product": "Microsoft Exchange Server 2016 Cumulative Update 17",
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              "versions": [
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                  "version": "15.01.0",
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              ]
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              "product": "Microsoft Exchange Server 2019 Cumulative Update 7",
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              "versions": [
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          ],
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                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C",
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        "datePublished": "2021-03-02T23:55:26.000Z",
        "dateReserved": "2021-02-08T00:00:00.000Z",
        "dateUpdated": "2025-10-21T23:25:52.982Z",
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    }

    CVE-2021-26855 (GCVE-0-2021-26855)

    Vulnerability from nvd – Published: 2021-03-02 23:55 – Updated: 2025-10-21 23:25
    VLAI CISA KEVIntel
    Title
    Microsoft Exchange Server Remote Code Execution Vulnerability
    Summary
    Microsoft Exchange Server Remote Code Execution Vulnerability
    SSVC
    Exploitation: active Automatable: yes Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • Remote Code Execution
    • CWE-918 - Server-Side Request Forgery (SSRF)
    Assigner
    Impacted products
    Vendor Product Version
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 19 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_19:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 8 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_8:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:*:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2013 Cumulative Update 22 Affected: 15.00.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_22:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 2 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_2:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 13 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_13:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2013 Cumulative Update 23 Affected: 15.00.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_23:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 3 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_3:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 14 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_14:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 4 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_4:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 15 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_15:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 5 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_5:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 6 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_6:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 16 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_16:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 17 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_17:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 7 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_7:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 18 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_18:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2013 Cumulative Update 21 Affected: 15.00.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_21:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 12 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_12:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 8 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_8:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 1 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_1:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 9 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_9:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 10 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_10:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 11 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_11:*:*:*:*:*:*
    Create a notification for this product.
    Date Public
    2021-03-02 08:00
    Show details on NVD website

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    CVE-2021-27065 (GCVE-0-2021-27065)

    Vulnerability from cvelistv5 – Published: 2021-03-02 23:55 – Updated: 2025-10-21 23:25
    VLAI CISA KEVIntel
    Title
    Microsoft Exchange Server Remote Code Execution Vulnerability
    Summary
    Microsoft Exchange Server Remote Code Execution Vulnerability
    SSVC
    Exploitation: active Automatable: no Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • Remote Code Execution
    • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
    Assigner
    Impacted products
    Vendor Product Version
    Microsoft Microsoft Exchange Server 2019 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:*:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2013 Cumulative Update 22 Affected: 15.00.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_22:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 2 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_2:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 13 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_13:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2013 Cumulative Update 23 Affected: 15.00.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_23:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 3 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_3:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 14 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_14:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 4 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_4:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 15 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_15:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 5 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_5:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 6 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_6:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 16 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_16:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 17 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_17:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 7 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_7:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 18 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_18:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 19 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_19:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 8 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_8:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2013 Service Pack 1 Affected: 15.00.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_1:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2013 Cumulative Update 21 Affected: 15.00.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_21:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 12 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_12:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 8 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_8:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 1 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_1:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 9 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_9:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 10 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_10:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 11 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_11:*:*:*:*:*:*
    Create a notification for this product.
    Date Public
    2021-03-02 08:00
    Show details on NVD website

    {
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              "versions": [
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              "platforms": [
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              "platforms": [
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              "product": "Microsoft Exchange Server 2016 Cumulative Update 18",
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                  "version": "15.01.0",
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              "versions": [
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                "baseScore": 7.8,
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                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C",
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            },
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            },
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        "datePublished": "2021-03-02T23:55:28.000Z",
        "dateReserved": "2021-02-10T00:00:00.000Z",
        "dateUpdated": "2025-10-21T23:25:52.706Z",
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    CVE-2021-26858 (GCVE-0-2021-26858)

    Vulnerability from cvelistv5 – Published: 2021-03-02 23:55 – Updated: 2025-10-21 23:25
    VLAI CISA KEVIntel
    Title
    Microsoft Exchange Server Remote Code Execution Vulnerability
    Summary
    Microsoft Exchange Server Remote Code Execution Vulnerability
    SSVC
    Exploitation: active Automatable: no Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    Assigner
    References
    Impacted products
    Vendor Product Version
    Microsoft Microsoft Exchange Server 2019 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:*:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2013 Cumulative Update 22 Affected: 15.00.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_22:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 2 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_2:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 13 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_13:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2013 Cumulative Update 23 Affected: 15.00.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_23:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 3 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_3:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 14 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_14:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 4 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_4:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 15 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_15:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 5 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_5:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 6 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_6:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 16 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_16:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 17 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_17:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 7 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_7:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 18 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_18:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 19 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_19:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 8 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_8:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2013 Cumulative Update 21 Affected: 15.00.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_21:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 12 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_12:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 8 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_8:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 1 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_1:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 9 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_9:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 10 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_10:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 11 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_11:*:*:*:*:*:*
    Create a notification for this product.
    Date Public
    2021-03-02 08:00
    Show details on NVD website

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    CVE-2021-26855 (GCVE-0-2021-26855)

    Vulnerability from cvelistv5 – Published: 2021-03-02 23:55 – Updated: 2025-10-21 23:25
    VLAI CISA KEVIntel
    Title
    Microsoft Exchange Server Remote Code Execution Vulnerability
    Summary
    Microsoft Exchange Server Remote Code Execution Vulnerability
    SSVC
    Exploitation: active Automatable: yes Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • Remote Code Execution
    • CWE-918 - Server-Side Request Forgery (SSRF)
    Assigner
    Impacted products
    Vendor Product Version
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 19 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_19:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 8 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_8:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:*:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2013 Cumulative Update 22 Affected: 15.00.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_22:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 2 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_2:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 13 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_13:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2013 Cumulative Update 23 Affected: 15.00.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_23:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 3 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_3:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 14 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_14:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 4 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_4:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 15 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_15:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 5 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_5:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 6 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_6:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 16 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_16:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 17 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_17:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 7 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_7:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 18 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_18:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2013 Cumulative Update 21 Affected: 15.00.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_21:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 12 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_12:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 8 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_8:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 1 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_1:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 9 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_9:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 10 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_10:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 11 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_11:*:*:*:*:*:*
    Create a notification for this product.
    Date Public
    2021-03-02 08:00
    Show details on NVD website

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    CVE-2021-26857 (GCVE-0-2021-26857)

    Vulnerability from cvelistv5 – Published: 2021-03-02 23:55 – Updated: 2025-10-21 23:25
    VLAI CISA KEVIntel
    Title
    Microsoft Exchange Server Remote Code Execution Vulnerability
    Summary
    Microsoft Exchange Server Remote Code Execution Vulnerability
    SSVC
    Exploitation: active Automatable: no Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • Remote Code Execution
    • CWE-502 - Deserialization of Untrusted Data
    Assigner
    References
    Impacted products
    Vendor Product Version
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 19 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_19:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 8 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_8:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:*:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2013 Cumulative Update 22 Affected: 15.00.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_22:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 2 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_2:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 13 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_13:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2013 Cumulative Update 23 Affected: 15.00.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_23:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 3 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_3:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 14 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_14:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 4 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_4:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 15 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_15:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 5 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_5:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 6 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_6:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 16 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_16:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 17 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_17:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 7 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_7:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 18 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_18:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2010 Service Pack 3 Affected: 14.0.0.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2010:sp3:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2013 Service Pack 1 Affected: 15.00.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_1:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2013 Cumulative Update 21 Affected: 15.00.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_21:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 12 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_12:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 8 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_8:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2019 Cumulative Update 1 Affected: 15.02.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_1:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 9 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_9:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 10 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_10:*:*:*:*:*:*
    Create a notification for this product.
    Microsoft Microsoft Exchange Server 2016 Cumulative Update 11 Affected: 15.01.0 , < publication (custom)
        cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_11:*:*:*:*:*:*
    Create a notification for this product.
    Date Public
    2021-03-02 08:00
    Show details on NVD website

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                    "type": "CWE"
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                ]
              }
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            "providerMetadata": {
              "dateUpdated": "2025-10-21T23:25:52.982Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
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                "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-26857"
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            ],
            "timeline": [
              {
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                "time": "2021-11-03T00:00:00.000Z",
                "value": "CVE-2021-26857 added to CISA KEV"
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            "title": "CISA ADP Vulnrichment"
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        ],
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